[INFO] fetching crate ibc-telemetry 0.7.0...
[INFO] testing ibc-telemetry-0.7.0 against beta-2021-09-12 for beta-1.56-2
[INFO] extracting crate ibc-telemetry 0.7.0 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate ibc-telemetry 0.7.0 on toolchain beta-2021-09-12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ibc-telemetry 0.7.0
[INFO] finished tweaking crates.io crate ibc-telemetry 0.7.0
[INFO] tweaked toml for crates.io crate ibc-telemetry 0.7.0 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ead6dd8f5e3f9cf391b99a9807c9ca9d235a988a7a14c6ebebfe7d3a39df4059
[INFO] running `Command { std: "docker" "start" "-a" "ead6dd8f5e3f9cf391b99a9807c9ca9d235a988a7a14c6ebebfe7d3a39df4059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ead6dd8f5e3f9cf391b99a9807c9ca9d235a988a7a14c6ebebfe7d3a39df4059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ead6dd8f5e3f9cf391b99a9807c9ca9d235a988a7a14c6ebebfe7d3a39df4059", kill_on_drop: false }`
[INFO] [stdout] ead6dd8f5e3f9cf391b99a9807c9ca9d235a988a7a14c6ebebfe7d3a39df4059
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-12" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84657ea06ec8fccf9a3378a8ea4dcc01cc721b3f0a7d54b47c293180d8f27776
[INFO] running `Command { std: "docker" "start" "-a" "84657ea06ec8fccf9a3378a8ea4dcc01cc721b3f0a7d54b47c293180d8f27776", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling protobuf v2.25.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling chunked_transfer v1.4.0
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling time v0.3.2
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling tinyvec v1.4.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling gzip-header v0.3.0
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling tracing v0.1.27
[INFO] [stderr]    Compiling async-stream v0.3.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling deflate v0.9.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prost-derive-0.7.0/src/lib.rs:109:14
[INFO] [stdout]     |
[INFO] [stdout] 109 |             .intersperse(quote!(|));
[INFO] [stdout]     |              ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 105 ~         let tags = Iterator::intersperse(field
[INFO] [stdout] 106 +             .tags()
[INFO] [stdout] 107 +             .into_iter()
[INFO] [stdout] 108 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 109 +         let mut _s = $crate::__private::TokenStream::new();
[INFO] [stdout] 110 +         $crate::quote_each_token!(_s $($tt)*);
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 105 ~         let tags = Itertools::intersperse(field
[INFO] [stdout] 106 +             .tags()
[INFO] [stdout] 107 +             .into_iter()
[INFO] [stdout] 108 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 109 +         let mut _s = $crate::__private::TokenStream::new();
[INFO] [stdout] 110 +         $crate::quote_each_token!(_s $($tt)*);
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prost-derive` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "84657ea06ec8fccf9a3378a8ea4dcc01cc721b3f0a7d54b47c293180d8f27776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84657ea06ec8fccf9a3378a8ea4dcc01cc721b3f0a7d54b47c293180d8f27776", kill_on_drop: false }`
[INFO] [stdout] 84657ea06ec8fccf9a3378a8ea4dcc01cc721b3f0a7d54b47c293180d8f27776